Why is mercury used in thermometer even though it is a poor conductor of heat?

Why is mercury used in thermometers despite being the poorest conductor of heat? Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it’s used in a thermometer.

Is mercury in a thermometer a conductor?

Mercury is a good conductor of heat. It is used in thermometers because it has a high coefficient of expansion. Its stage indicates the temperature as rapidly as potential and perfectly. Mercury is the only one in a liquid state at room temperature.

How does mercury work in a thermometer?

In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.

Which metal is poor conductor of electricity?

Tungsten and Bismuth are metals which are poor conductors of electricity. There are many, but some include Aluminum, Bismuth, Gallium, Indium, Lead, Thallium, Tin, Ununhexium, Ununpentium, Ununquadium, and Ununtrium.

Does mercury have high conductivity?

At room temperature, mercury is a thick, silvery liquid with a very high density and low heat conductivity. It has a relatively high electrical conductivity and readily forms amalgams (alloys) with gold and silver.

Does mercury conduct heat and electricity?

Mercury is a heavy, silvery-white liquid metal. Compared to other metals, it is a poor conductor of heat, but a fair conductor of electricity.

Is mercury a conductor of heat or electricity?

Mercury is the only common metal which is liquid at ordinary temperatures. Mercury is sometimes called quicksilver. It is a heavy, silvery-white liquid metal. It is a rather poor conductor of heat if compared with other metals but it is a fair conductor of electricity.

Which is poor conductor of electricity lead or mercury?

Among metals: Copper & Zinc are good conductors. Mercury metal is a poor conductor while Lead is the poorest conductor.

Why does mercury rise in a thermometer?

The mercury pools in the bulb, but when it heats up, it expands. Because it can’t expand through the bottom of the bulb, it is forced up the tube. That expansion, caused by the atoms flying around faster and taking up more space, is what makes the thermometer work.

Would a mercury thermometer break if the temperature went below the freezing temperature of mercury?

Mercury contracts when cooled, so a mercury thermometer would not break if the temperature went below the freezing temperature of mercury.

Is a thermometer a conductor of mercury?

A thermometer is not mercury. A thermometer may contain mercury, but most don’t. The thermometers that do contain mercury (a conductor that passes electricity) keep the mercury in some sort of container. This container may or may not be a conductor.

Why is mercury not a conductor of electricity?

The very fact that mercury is a liquid and not a gas shows that there is some bonding in mercury, even if it is weaker than the bonding in most metals. So, it is conductive the same way other metals are, just less conductive. You can look up the conductivity of mercury, and you will find it to be lower than most metals.

Why are most metals good conductors of heat?

Most metals are good conductors of heat and they are solids at room temperature. Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion.

Is Mercury a solid liquid or gas at room temperature?

Mercury is a dense, silvery d-block element. It is the only metal that is liquid at standard conditions for temperature and pressure. The only other element that is liquid under these conditions is bromine, though metals such as caesium, gallium, and rubidium melt just above room temperature.